I'm trying to display an html file into a UIWebView :
NSString *htmlPath = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:#"error.htm"];
NSError* error;
NSStringEncoding encoding;
NSString *htmlContent = [NSString stringWithContentsOfFile:htmlPath usedEncoding:&encoding error:&error];
NSString* bundlePath = [[NSBundle mainBundle] bundlePath];
[self.webView loadHTMLString:htmlContent baseURL:[NSURL fileURLWithPath:bundlePath]];
error.htm is localized. When using this method, no page is loaded. The htmlContent refers to myApp.app/error.htm. But all my error.htm files are in localized folders.
If I use another non localized HTML file (error2.htm, pure copy of error.htm), it is displayed.
How may I use the localized file ?
You are creating the path to the html file yourself using the root resource path and a string - the iPhone isn't psychic, how would it know that you have localised this file?
Try using
NSString *htmlPath = [[NSBundle mainBundle] pathForResource:#"error" ofType:#"html"];
instead - this should deal with localised resources for you.
Localization shouldn't be the problem - I'm loading localized HTML files perfectly fine using something like this:
NSString *path = [[NSBundle mainBundle] pathForResource:#"error" ofType:#"htm"];
NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL fileURLWithPath:path isDirectory:NO]];
// ...
[self.webView loadRequest:request];
The answer is not correct (and also didn't work for me) -
this is the function to use for loading localized resource:
- (NSString *)pathForResource:(NSString *)name ofType:(NSString *)ext inDirectory:(NSString *)subpath forLocalization:(NSString *)localizationName;
the localizationName is the two characters localization language code.
BTW - you can get your default/current one by using:
return [[[NSUserDefaults standardUserDefaults] objectForKey:#"AppleLanguages"] objectAtIndex:0];
Related
I have created a UIWebView and used a HTML file to display some contents. But when I run it instead of showing the contents only the whole HTML file coding is coming in the WebView. Please help and tell me what is wrong.
UIWebView *ingradients= [[UIWebView alloc]init];
[ingradients setFrame:CGRectMake(10, 170, 300, 300)];
[ingradients loadRequest:[NSURLRequest requestWithURL:[NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:#"htmlfile" ofType:#"html"]isDirectory:NO]]];
ingradients.delegate=self;
[self.view addSubview:ingradients];
My htmlfile.html contains
<html>
<body>
<p><strong>Ingredients</strong></p>
</body>
</html>
Instead of showing "Ingredients" in bold its showing the whole coding of htmlfile.html
In Your code you alway contain HTML code because your request always return file htmlfile with extantion .html
If you want to get specific value from HTML content you need to Parce HTML content by using Hpple. Also This is documentation with exmple that are use for parse HTML content.
In your case you use: (by using Hpple)
TFHpple *dataParser = [TFHpple hppleWithHTMLData:placesData];
// name of place
NSString *XpathQueryString = #"//p/strong";
NSArray *listOfdata= [dataParser searchWithXPathQuery: XpathQueryString];
That's weird, I have similar code for this and html is rendered as rich text but not as plain text (like you have), the only difference I have is using fileURLWithPath: but not fileURLWithPath:isDirectory:. Here's my code:
NSString *localFilePath = [[NSBundle mainBundle] pathForResource:#"about" ofType:#"html"];
NSURLRequest *localRequest = [NSURLRequest requestWithURL:[NSURL fileURLWithPath:localFilePath]];
[_aboutWebView loadRequest:localRequest];
Maybe you have some issues with file encoding, but as far as I guess, that should not be the case.
Try this code:
- (NSString *) rootPath{
return [NSSearchPathForDirectoriesInDomains(NSDocumentationDirectory, NSUserDomainMask, YES) lastObject];
}
- (NSString *) pathFoResourse : (NSString *) resourseName ofType: (NSString *)type{
NSString *path = [[MMSupport rootPath] stringByAppendingPathComponent:[NSString stringWithFormat:#"%#.%#", resourseName, type]];
if (![[NSFileManager defaultManager] fileExistsAtPath:path]) {
path = [[NSBundle mainBundle] pathForResource:resourseName ofType:type];
}
NSLog(#"**path:%#**", path);
return path;
}
- (void) loadDataToWebView : (CGRect) frame{
NSString *htmlString = [NSstring stringWithContentsOfFile:[MMSupport pathFoResourse:#"filename" ofType:#"html"] encoding:NSUTF8StringEncoding) error:nil];
UIWebView *webView = [[UIWebView alloc] initWithFrame:frame];
[webView loadHTMLString:htmlString baseURL:nil];
}
I want to put the content of my html resource file into an NSString object. Is it possible and advisable to do that? How could it be done?
Possible? - yes
Advisable? - unless it is an extremely large file, why not?
How? - There is already a method to do it for you in NSString - stringWithContentsOfFile:encoding:error:.
See the snippet below:
NSError* error = nil;
NSString *path = [[NSBundle mainBundle] pathForResource: #"foo" ofType: #"html"];
NSString *res = [NSString stringWithContentsOfFile: path encoding:NSUTF8StringEncoding error: &error];
I would like to implement a multi language support for my app. So I created the Localizing.strings file and all that stuff and translated my interface. So far so good …
Now I want to duplicate my database in order to have a *.db-file for every single language. So I did and then I clicked via XCode on the "+" under the Localization tab. I now have a *.db-file in my en.lproj and de.lproj folder.
My problem: If I want to copy the db-files to the app's documents directory the *.db file is not available of course because it is in the *.lproj-folder. Is there any command to get the right lproj-folder?
To clarify my needs:
This doesn't work
[[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:#"mydatabase.db"]
… this does:
[[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:#"de.lproj/mydatabase.db"]
… but I don't want to add the "de.lproj" and "en.lproj" etc. manually. Is there any way to fix it dynamically?
just do the following:
NSString *dbpathResource =
[[NSBundle mainBundle] pathForResource:#"databaseName" ofType:#"db"];
and if you have your localized .db file in xx.lproj so the correct database will be taken.
What you want is the current language locale, the following code should return the code:
NSArray *languagesArray = [[NSUserDefaults standardUserDefaults] objectForKey:#"AppleLanguages"];
NSString *currentLanguage = [languagesArray objectAtIndex:0];
You can then do the following
[[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:[NSString stringWithFormat:#"%#.lproj/mydatabase.db", currentLanguage]];
You may want to check if the path exists and is a valid file, if not maybe use some default path like the one for English (en.lproj)
Edit: There is another way you can do this using NSLocale's preferred languages because then you get a list of the preferred languages, so some updated code for the first bit would be:
NSArray *languagesArray = [NSLocale preferredLanguages];
NSString *currentLanguage = [languagesArray objectAtIndex:0];
In the end, you'd end up with something like so:
NSString *pathComponent = [NSString stringWithFormat:#"%#.lproj/mydatabase.db", currentLanguage];
NSString *path = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:pathComponent];
NSString *activePath = nil; // This will store the active language file
// Check if the file exists...
if ([[NSFileManager defaultManager] fileExistsAtPath:path]) {
activePath = path;
} else {
activePath = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:#"en.lproj/mydatabase.db"]; // Fallback
}
Please note, the above code is untested but should suffice. You may need to modify it a little...
Something like this:
NSString * language = [[NSLocale preferredLanguages] objectAtIndex:0];
NSString * rootPath = [[NSBundle mainBundle] resourcePath];
NSString * resourcePath = [[NSBundle mainBundle] pathForResource: #"mydatabase" ofType: #"db" inDirectory: rootPath forLocalization: language];
I've got some HTML and some images in my iPhone app, arranged something like:
html/
foo.html
images/
bar.png
I can get bar.png to appear in my UIWebView a couple of different ways -- either loading foo.html from an NSUrl, and walking back up the directory tree from the html directory:
<img src="../images/bar.png"/>
or by loading foo.html into a string, using loadHtmlString, and using [[NSBundle mainBundle] bundleURL] as the baseURL:
<img src="images/bar.png"/>
Both of these are kind of clumsy, though -- in the first case, if I move HTML files around I have to rejigger all the relative paths, and in the second case, I have to ignore the actual path structure of the HTML files.
What I'd like to make work is this --
<img src="/images/bar.png"/>
-- treating the bundleURL as the root of the "site". Is there any way to make this work, or am I doomed to have that translated into file:///images/bar.png and have the file not found?
Only way I can see for you to do this would be to embed a web server in your app. Matt Gallagher has a blog post on this you could start from. Alternatively, CocoaHTTPServer and Mongoose could be dropped into your project.
If I'm not mistaken, you have some files in your project bundle that you want to load in your web view. You can do it simply with these few lines of code:
NSString *imagePath = [[NSBundle mainBundle] pathForResource:#"bar" ofType:#"png"];
NSURL *imageURL = [NSURL fileURLWithPath:imagePath];
I'm assuming that you have a text/html file containing the pattern for your web view. You'll need to add the image as an object there (src="%#"...) and then add the imageURL to the pattern:
NSString *path = [[NSString alloc]initWithString:[[NSBundle mainBundle]pathForResource:#"htmlPattern" ofType:#"html"]];
NSError *error;
NSString *pattern = [[NSString alloc]initWithContentsOfFile:path
encoding:NSUTF8StringEncoding
error:&error];
htmlPage = [[NSString alloc]initWithFormat:pattern,
imageURL;
webView = [[UIWebView alloc] initWithFrame:WEBVIEW_FRAME];
[webView loadHTMLString:htmlPage baseURL:[NSURL URLWithString:path]];
[webView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:pattern]]];
I have downloaded a gif image into an NSData object (I've checked the contents of the NSData object and it's definitely populated). Now I want to load that image into my UIWebView. I've tried the following:
[webView loadData:imageData MIMEType:#"image/gif" textEncodingName:nil baseURL:nil];
but I get a blank UIWebView. Loading the image from the same URL directly works fine:
NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:imageUrl]];
[imageView loadRequest:request];
Do I need to set the textEncodingName to something, or am I doing something else wrong?
I want to load the image manually so I can report progress to the user, but it's an animated gif, so when it's done I want to show it in a UIWebView.
Edit: Perhaps I need to wrap my image in HTML somehow? Is there a way to do this without having to save it to disk?
I tested the code with PNG ("image/png"), JPG ("image/jpeg") and GIF ("image/gif"), and it works as expected:
[webView loadData:imageData MIMEType:imageMIMEType textEncodingName:nil baseURL:nil];
Now, what's wrong with your app?
the imageData is not a well-formed image data. Try opening the file with a web browser or an image editor to check it.
the MIME type is incorrect. Look at the first bytes of the data to determine the actual file type.
webView is not connected in IB, is nil, is hidden, is covered with another view, is off screen, has a CGRectZero frame, etc.
I did not really try to load image to UIWebView but a google search gives me. I think your image string must have a good path and looks like a URL
NSString *imagePath = [[NSBundle mainBundle] resourcePath];
imagePath = [imagePath stringByReplacingOccurrencesOfString:#"/" withString:#"//"];
imagePath = [imagePath stringByReplacingOccurrencesOfString:#" " withString:#"%20"];
NSString *HTMLData = #"
<h1>Hello this is a test</h1>
<img src="sample.jpg" alt="" width="100" height="100" />";
[webView loadHTMLString:HTMLData baseURL:[NSURL URLWithString: [NSString stringWithFormat:#"file:/%#//",imagePath]]];
You can see more details here : Loading local files to UIWebView
UIImage *screenshot= [UIImage imageAtPath:
[[NSBundle mainBundle] pathForResource:#"MfLogo_aboutus" ofType:#"png"]];
NSData *myData = UIImagePNGRepresentation(screenshot);
[vc addAttachmentData:myData mimeType:#"image/png" fileName:#"logo.png"];
You can load urlImage into webview which is not saved locally as shown below code
NSString *str = #"";
str = [str stringByAppendingString:#"http://t3.gstatic.com/images?q=tbn:7agzdcFyZ715EM:http://files.walerian.info/Funny/Animals/funny-pictures-firefox-file-transfer-is-complete.jpg"];
NSData *data = [NSData dataWithContentsOfURL:[NSURL URLWithString:str]];
[webView loadData:data MIMEType:#"application/jpg" textEncodingName:#"UTF-8" baseURL:[NSURL URLWithString:#"http://google.com"]];
I had the same problem and I found somewhere else that you have to provide a value in the baseURL parameter. I also had encoding set:
textEncodingName:#"UTF-8" baseURL:[NSURL URLWithString:#"http://localhost/"]];
When I had nil in the baseURL parameter it would not load. By putting something that's basically irrelevant in there the MS docs all worked.
You may want to try assigning a delegate to the webview and implementing the method:
- (void)webView:(UIWebView *)webView didFailLoadWithError:(NSError *)error
To see more specifically what error you're getting. If it doesn't get called, implement the method:
- (void)webViewDidFinishLoad:(UIWebView *)webView
as well, just to make sure something is happening, otherwise there might be an issue with UIWebView (assuming you haven't returned NO from webView:shouldStartLoadWithRequest:navigationType:)
To expand on Ed Marty's comment:
The HTML command to put in a base 64 image is:
<img src="data:image/png;base64,##PUT THE BASE64 DATA HERE###" />
I have a category (I'm not sure where it came from, not me...) available on my website that converts NSData to it's Base64 string representation.
Header
Implementation
Easy enough to do, assuming 'imageData' is the NSData variable containing your image:
[imageData base64Encoding] into the above string.
try this code
// 1) Get: Get string from “outline.plist” in the “DrillDownSave”-codesample.
savedUrlString = [item objectForKey: #"itemUrl"];
// 2) Set: The url in string-format, excluding the html-appendix.
NSString *tempUrlString = savedUrlString;
// 3) Set: Format a url-string correctly. The html-file is located locally.
NSString *htmlFile = [[NSBundle mainBundle] pathForResource:tempUrlString ofType:#”html”];
// 4) Set: Set an “NSData”-object of the url-sting.
NSData *htmlData = [NSData dataWithContentsOfFile:htmlFile];
// 5. Gets the path to the main bundle root folder
NSString *imagePath = [[NSBundle mainBundle] resourcePath];
// 6. Need to be double-slashes to work correctly with UIWebView, so change all “/” to “//”
imagePath = [imagePath stringByReplacingOccurrencesOfString:#"/" withString:#"//"];
// 7. Also need to replace all spaces with “%20″
imagePath = [imagePath stringByReplacingOccurrencesOfString:#" " withString:#"%20"];
// Load: Loads the local html-page.
[webView loadData:htmlData MIMEType:#"text/html" textEncodingName:#"UTF-8" baseURL:[NSURL URLWithString:[NSString stringWithFormat:#"file:/%#//",imagePath]]];
Here's an alternative method:
Save the image you downloaded into your documents folder.
Then get that image's url. Then write a simple html file
using that image url in the IMG SRC tag.
NSLog(#"url=%#", fileURL); // fileURL is the image url in doc folder of your app
//get the documents directory:
NSArray *paths = NSSearchPathForDirectoriesInDomains
(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
//make a file name to write the data to using the documents directory:
NSString *fileName = [NSString stringWithFormat:#"%#/toOpen.html",
documentsDirectory];
//create simple html file and format the url into the IMG SRC tag
NSString *content = [NSString stringWithFormat:#"<html><body><img src=%#></body></html>",fileURL];
//save content to the documents directory
[content writeToFile:fileName
atomically:NO
encoding:NSStringEncodingConversionAllowLossy
error:nil]; // now we have a HTML file in our doc
// open the HTML file we wrote in the webview
NSString *filePath = [documentsDirectory stringByAppendingPathComponent:#"life.html"];
NSURL *url = [NSURL fileURLWithPath:filePath];
NSURLRequest *request = [NSURLRequest requestWithURL:url];
[yourWebView loadRequest:request];
NSString *pathForFile = [[NSBundle mainBundle] pathForResource: #"fireballscopy" ofType: #"gif"];
NSData *dataOfGif = [NSData dataWithContentsOfFile: pathForFile];
[Web_View loadData:dataOfGif MIMEType:#"image/gif" textEncodingName:nil baseURL:nil];